68 lines
2 KiB
Rust
68 lines
2 KiB
Rust
use std::io::{self, Write};
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use std::path::Path;
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use crate::rustfmt_diff::{DiffLine, Mismatch};
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/// The checkstyle header - should be emitted before the output of Rustfmt.
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///
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/// Note that emitting checkstyle output is not stable and may removed in a
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/// future version of Rustfmt.
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pub fn header() -> String {
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let mut xml_heading = String::new();
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xml_heading.push_str("<?xml version=\"1.0\" encoding=\"utf-8\"?>");
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xml_heading.push_str("\n");
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xml_heading.push_str("<checkstyle version=\"4.3\">");
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xml_heading
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}
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/// The checkstyle footer - should be emitted after the output of Rustfmt.
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///
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/// Note that emitting checkstyle output is not stable and may removed in a
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/// future version of Rustfmt.
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pub fn footer() -> String {
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"</checkstyle>\n".to_owned()
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}
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pub fn output_checkstyle_file<T>(
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mut writer: T,
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filename: &Path,
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diff: Vec<Mismatch>,
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) -> Result<(), io::Error>
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where
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T: Write,
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{
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write!(writer, "<file name=\"{}\">", filename.display())?;
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for mismatch in diff {
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for line in mismatch.lines {
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// Do nothing with `DiffLine::Context` and `DiffLine::Resulting`.
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if let DiffLine::Expected(ref str) = line {
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let message = xml_escape_str(str);
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write!(
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writer,
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"<error line=\"{}\" severity=\"warning\" message=\"Should be `{}`\" \
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/>",
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mismatch.line_number, message
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)?;
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}
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}
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}
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write!(writer, "</file>")?;
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Ok(())
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}
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// Convert special characters into XML entities.
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// This is needed for checkstyle output.
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fn xml_escape_str(string: &str) -> String {
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let mut out = String::new();
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for c in string.chars() {
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match c {
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'<' => out.push_str("<"),
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'>' => out.push_str(">"),
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'"' => out.push_str("""),
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'\'' => out.push_str("'"),
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'&' => out.push_str("&"),
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_ => out.push(c),
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}
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}
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out
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}
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